Programme appraisal draft update - XIII , October 2007

AREA

CATALYSIS

CODE

A-4

AREA COORDINATORS

Russian
ACAD V.N.PARMON
General Director,
United Institute of Catalysis
Lavrentiev Prosp 5,
Novosibirsk- 90.
Tel: (383) 3308269
Fax: (383) 3308056
E-mail: parmon@catalysis.ru

А-4Л6

STUDY AND DEVELOPMENT OF HETEROGENEOUS PHOTOCATALYTIC REMOVAL OF HAZARDOUS COMPOUNDS FROM WATER AND AIR

OBJECTIVES

• Preparation of series of Ti0₂-supported for hazardous compounds removal (degradation) in water/air
• To develop highly active photocatalysts for hazardous organic degradations Catalyst characterization using surface techniques
• Catalyst evaluation for degradation of synthetic pesticide, H₂S,
• Volatile organics etc containing water and air and also live sample from industrial area
• Development of analytical methods for determination of degradation process
• Mineralization degradation rate, identification of intermediates etc.
• Improvement of catalyst by metal loading, usage of adsorbents like zeolite etc.
• To fabricate the photocatalyst on inert support materials
• Development of batch and reactor that can continuously degrade
• low concentration of hazardous compounds in water and air.
• To test Photocatalytic oxidation in the presence of other oxidants
• To optimize the characteristics of the best photo catalyst system
• obtained in the studies for development of a device
• Photocatalytic reactor size optimization to fabricate device
• Comparison of data obtained with other available treatment methods for hazardous compounds degradation

PROJECT COORDINATORS

Indian

DR M SUBRAHMANYAM
I'ndian Institute of Chemical Technology; Catalysis and Physical Chemistry Division
Indian Institute of Chemical Technology, Hyderabad - 500007
Tel: (040) 27193165/27171380 ®
Fax:(040)27160921
Email: subrahmanyam@iict.ap.nic.in

Russia

DR ALEXANDRE VORONTSOV
Boreskov Institute of Catalysis
Lavrentieva 5,
Novosibirsk, Russia
Tel: 73832331617
E-mail: voronts@catalysis.nsk.su

OTHER PARTICIPANTS

PROECTED FUNDING

Year
2002-2003
2003-2004
2004-2005
Total

Three Years

CONCRETISATION PERIOD

1.11. 2002 to 31.3.2003

IMPLEMENTA TION PERIOD

1.4.2003 to 31.3.2007

PLANNED MILESTONES

AS ON

TARGET

1^st Six Months

Exchange of ideas and synthesis of new photo catalysts and their characterization.
Testing photo catalysts of different materials with different supports
and their evaluation for air and water pollutants organic degradations

2^nd Six Months

Modification of the best photo catalyst systems reported/developed for the highest yields.
Development of specific techniques for the best doped TiO² for active and selective degradations of organics

3^rd Six Months

Determining the relative rates for different catalysts systems for development of organic degradation in water/air. Establishment of photo catalytic rates with and without supports, dopants etc.

4* Six Months

The design, the production, the optimization and the scaling up of the photo catalytic reactors for water/air purification.

5* Six Months

Lowering the production costs of the photo catalytic reactor for the treatment of the water/air pollutants.

6* Six Months

A device development for treatment of water/air pollutant degradation.

ACCOMPLISHMENT STATUS

The ortho nitrophenol was used for the degradation studies. The initial concentration of about 72ppm (0.517 mmoles) of o-nitrophenol was prepared using Millipore water throughout the experiments. About lOOmg of photocatalyst was used through out the studies. The o-nitrophenol solution with catalyst is sonicated for five minutes prior to the UV illumination. The solution was placed in a batch cylindrical reactor and is illuminated with 12-watts high pressure mercury vapour lamp. The reactor temperature was maintained at 30⁰ C. Samples for analyses (each 10 ml) were withdrawn at fixed intervals of time from the irradiated solution and the catalyst was separated from the solution through a 0.45um cellulose acetate membrane filter.

The mineralisasion was monitored with the total organic carbon (TOC) using Schimadzu TOC analyzer. The photocatalytic disappearance off nitrophenol as a function of irradiation time was depicted. The catalyst used for the present study is prepared by solid-state interaction technique. Degussa P-25 TiO₂ (BET surface area-50 m²/g) was used as a photocatalyst. The Ti0₂ was supported on different zeolites like HZSM-5 (Si0₂/Al₂O3=30), Hb (Si0₂/Al₂O3=20),HY (Si0₂/Al₂0₃=4.4), and are prepared from PQ corporation in USA; Conteka, Sweeden and from NCL Pune, India respectively.

The catalyst was prepared by through mixing of Zeolite and catalyst 2 to 15wt % Ti0₂ in an agate mortar with dry ethanol. The catalysts were dried by evaporation to remove ethanol, dried overnight in hot air oven at 393K and finally claimed at 673K for 6 hours. A series of samples were prepared with different wt % of AiO₂ on each Zeolite using above procedure and are used for the present investigation.

Photocatalyst are characterized by techniques like XRD, BET surface area, TPD of NH₃. X-ray diffraction patterns of the samples are recorded on Siemen D-5000 diffractometer using Ni-filtered Cu-Ka radiation. Diffraction patterns were taken in the 29 ranges 0-60⁰C. The BET surface areas of the catalyst were determined by nitrogen adsorption at liquid nitrogen temperature (77K) in an all glass high-vaccum adsorption unit at 10^-6 torr pressure. TPD of NH₃ experiments are carried out on an Auto-chan 2910 (micromeritics USA) instruments.

Experiments are in progress in presence of oxygen with different Zeolite supports and precent loading of Ti0₂ to improve the rate of mineralization.

EXCHANGE VISITS UNDERTAKEN
Indian Specialists to Russia

S. No

Name

Organisation

from

Duration

1.

Shri Akula Venugopal

IICT, Hyderabad

19.11.2003

30 days

2.

Shri Basavaraju Srinivas

IICT, Hyderabad

19.11.2003

30 days

INDIA

DEPARTMENT OF SCIENCE AND TECHNOLOGY MINISTRY OF SCIENCE & TECHNOLOGY GOVERNMENT OF INDIA

Technology Bhawan, New Mehrauli Road,New Delhi -110016
Fax 011-6961912,6862418

Shri Y.P. Kumar
Adviser and Head International Division

Phone: (91) 11 -26961912 / 26567373 Ext. 430
E-mail: ypk@nic.in

Shri S.K. Varshney
Scientist 'F'

Phone: (91) 11 - 26868242/ 26567373 Ext. 432
E-mail: skvdst@alpha.nic.in

Shri Rajiv Kumar
Scientist 'C'

Phone: (91) 11 - 26590454 / 26567373 Ext. 454
E-mail: rajivarc@nic.in

Accounts Officer ILTP

Phone: (91)-(11 26590482 / 26567373 Ext. 482,/p>

Shri SK Banerji
Protocol Assistant

Phone: (91) 11 26567373 Ext. 322

EMBASSY OF INDIA IN RUSSIA

Dr Pramod Shukla, Counsellor (S&T)
Science & Technology Wing
6-8, Ulitsa Vorontsovo Polye, Moscow-103064

Phone: 007-495-9160297 / Fax: 007-495-9160297
E-mail: csteoi@hotmail.com

RUSSIA

RUSSIAN ACADEMY OF SCIENCES S&T COOPERATION DEPARTMENT
14, Leninsky Prospect, Moscow V-17
Fax: (007-495) 9541097 /9544612

MINISTRY OF S&T POLICY
OF RUSSIAN FEDERATION
11, Tverskaya Street, Moscow - 103905 Fax: (007-495) 2302660 / 9541404

Dr SS Markianov
Head, Foreign Relations Department

Phone: (007-495) 2372822
E-mail: uvs@presidium.ras.ru

Dr W Shapovalenko
Dy. Head Foreign Relations Department

Phone: (007-495) 2370041,2376958, 9541116
E-mail: wshapovalenko@presidium.ras.ru

EMBASSY OF RUSSIA IN INDIA
Shanti Path, Chanakyapuri, New Delhi

Phone: 011-26110640/41
Fax: 011-26876823